Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number H3F3BANDK3B found under Coupling Assembly Q by Foster Manufacturing Co Inc. The National Stock Number assigned to this part is 4730008157837, and the Federal Supply Class is 4730 Hose Pipe Tube Lubrication And Railing Fittings. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like H3F3BANDK3B.